I have a Linux web server, and I've created a user (in/etc/passwd) for a web designer. I pre-set her password and she uses the sftp uploading capability of her web design software to upload content. This works, but I don't like the fact that there is no way for her to change her password on her own. The web design software (Dreamweaver) does not seem to provide this capability. What's the easiest way for me to provide this?